--- service: j.root-servers.net start-period: '2015-05-07T00:00:00Z' end-period: '2015-05-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3261910800 dns-udp-queries-received-ipv6: 262554438 dns-tcp-queries-received-ipv4: 24688052 dns-tcp-queries-received-ipv6: 4943546 dns-udp-responses-sent-ipv4: 3197356374 dns-udp-responses-sent-ipv6: 262454227 dns-tcp-responses-sent-ipv4: 24242887 dns-tcp-responses-sent-ipv6: 3951003